Ventilator.



W.?:SIMPSON.

VENTILATOR. APPLICATION FILED MAILIZQ. 191s.

1%33555 1"? Patented July 17, 191?.

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VENTILATOR,

APPLlCATlON man MAR. 29. ms.

Patented July 17, 1917.

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WALTER r. sI-Mrson, or serrate; new Yonn.

'VENTILATOR.

To all whom it may concern:

Be it known that I, WALTER P. SIMPSON, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Ventilators, of which the following is a specification. j

This invention relates to the class of ventilators adapted to be applied to windows betweenthe frame and the upper or lower sash or both.

One of the objects of the invention is the production of an efficient ventilator of simple construction which can be readily adjusted to fit different-sized windows.

Another object is the improvement of the ventilator with a view of promoting the natural draft through it and increaslng its ventilating capac1t j Another object is to so construct the venti lator that any rain or sleet blown into it will be prevented from entering the apartment.

In the accompanying drawings:

Figure 1 is an interior view of a window equipped with a pair of the ventilators, the upper one being shown in front elevation and the lower one in longitudinal section. Fig. 2 is a fragmentary exterior view of the lower portion of the window and the lower ventilator. Fig. 3 is an enlarged horizontal section on line 3-3, Fig. 2. Fig. 4: is a cross section on line M, Fig. 2. Fig. 5 is an enlarged cross section on line 55, Fig. 1.

Similar characters of reference indicate corresponding parts throughout the several views.

In order to produce a satisfactory circulation of the air, it is desirable to employ two ventilators, one at the top and the other at the bottom of the window, as shown in Fig. 1. They are identical in construction and a description of one will therefore apply to both.

The ventilator comprises a box-like casing, preferably of rectangular cross section, which is interposed for example between the window sill 1 and the raised lower sash 2. In its preferred form, it consists of a central section 3 terminating short of the sides 4 of the window frame and adjustable end sections 5 telescoped into or upon the central section, so that they may be adjusted therein to fit windows of different widths. 55 The several sections are closed th ir i Specificationof Letters Patent. P-zttgntgd lfuly 1'? 1-917,

Application filed a 29, 19,15.

S erie1 No. 87,415

ner or rear sides which face. the apartment, as well as at their upper and lower sides, while their front sides are open, preferably from end; to end and from top to bottom, as shown. The upper and lower walls of the central section 3 are properly spaced apart and stiffened by one or. more suitable braces 6, which in the construction shown, conipr se a sheet metal strip having its end portions bent at right angles, as shown at 7, and soldered or otherwise secured to said walls. The corresponding walls of the. adjustable sections 5 are stiffened by similar braces 8. In the preferred construction shown in the drawings, the end sections are guided 011 the middle section by flanges 9, extending outwardly from the front edges of e e d s ct o s andisli eb n channele flanges 10 on the adjacent edge of the middle section. These sections may however be guided on each other by. any suitable means.

As shown in Figs. 3 and 4, the portions of the ventilator sections located between the upright sides of the window frame are comparatively wide from front to rear of the frame, while the outer end portions of the adjustable sections 5 are reduced to form comparatively narrow extensions 11 which rest against the inner face of the frame, and are open at their outer ends. Arranged withinthese contracted extensions are regulating valves or shutters 12 of any suitable construction. Those illustrated in the drawings are pivoted to the extensions at one end, as shown at 13, so that their free ends swing lengthwise of the ventilator to enlarge or contract the mouths of the exten sions. These valves are provided on the side of the ventilator facing the apartment with crank arms 15% for adjusting them, the valves being held in any desired position by their frictional contact with the side walls of the extensions 11, or by any other suitable means.

As shown at 15 in Fig. 1, the mouths of the extensions are inclined inwardly or toward the central section of the ventilator. By this construction, any rain or sleet which may be blown into the extension is caused to run back into the body portion of the ventilator and be discharged instead of dripping on the floor of the apartment.

Any suitable means may be employed for holding the ventilator in place. The preferred d es sh n in the drawings con,

' prise vertically swinging straps or leaves 16 hinged to the top of the ventilator, as shown at 17, and provided at their upper ends with lips or hooks 18 which detachably engage slots 19 formed in plates 20 secured to the adjacent sash-bar.

The ventilator is reliably held from outward displacement by'the extensions 11 and from inward displacement by the channeled flanges 10 which bear against the outer face of the adjacent sash bar, as shown in Figs. 3, 4 and 5, thus serving as stops.

In the use of the ventilator, the air currents traversing its open outer side, draw the air from the apartment into the inclined mouths 15 of the ventilator, the draft being regulated by the valves or; shutters 12 in an obvious manner.

The reduced extensions 11 serve to increase the velocity of the air current through the ventilator, producing more active circulation of the air through the apartment and a more thorough ventilation thereof.

While thoroughly ventilating the apartment, this device can be readily applied and removed as well as adjusted to fit different sized windows, and it comprises comparatively few parts, enabling it to be produced at low cost.

I claim as my invention:

1. The combination with a window-frame, of a ventilator comprising a box-like bodyportion fitted between the sides of the window-frame and provided with reduced openended end-portions arranged within the apartment, said end portions extending laterally beyond said body-portion and bearing against the face of the window-frame, the body-portion being open at its front side and closed at its top, bottom and rear side.

2. The combination with a window-frame, of a ventilator comprising a box-like bodyportion fitted between the sides of the win- 'dow-frame and provided with reduced openended end-portions arranged within the apartment and bearing against the face of the window-frame, the bottoms of said endportions sloping toward each other, said body-portion being open at its front side and closed at its top, bottom and rear side.

WALTER P. SIMPSON.

Copies 01 this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

